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参数资料
| 型号： | MAX221EEAE |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 通用总线功能 |
| 英文描述： | 【15kV ESD-Protected, +5V, 1レA, Single RS-232 Transceiver with AutoShutdown |
| 中文描述： | LINE TRANSCEIVER, PDSO16 |
| 封装： | 5.30 MM, 0.65 MM PITCH, SSOP-16 |
| 文件页数： | 6/12页 |
| 文件大小： | 177K |
| 代理商： | MAX221EEAE |
M
±15kV ESD-Protected, +5V, 1μA, Single RS-232
Transceiver with AutoShutdown
6
_______________________________________________________________________________________
1
No
Shutdown
(AutoShutdown)
High-Z
1
High-Z
0
1
0
1
0
1
0
OPERATION
STATUS
X
X
X
0
VALID
RECEIVER
EN
Shutdown
(Forced Off)
X
Normal Operation
(Forced On)
Yes
No
Normal Operation
(AutoShutdown)
Yes
High-Z
Active
Active
Active
High-Z
TOUT
Active
High-Z
0
1
FORCEOFF
1
1
0
1
1
High-Z
Active
High-Z
Active
Active
ROUT
High-Z
Active
X
1
FORCEON
1
0
X
0
0
RS-232 SIGNAL PRESENT
AT RECEIVER INPUT
INVALID
OUTPUT
Yes
High
No
Low
Table 1. Output Control Truth Table
Table 2.
INVALID
Truth Table
Figure 2c. AutoShutdown Logic
+0.3V
-0.3V
INVALID
TO MAX221E
POWER SUPPLY
AND TRANSMITTER
RIN
* TRANSMITTER IS DISABLED, REDUCING SUPPLY CURRENT TO 1
μ
A IF
RECEIVER INPUT IS BETWEEN +0.3V AND -0.3V FOR
AT LEAST
30
μ
s.
30μs
COUNTER
R
+2.7V
-2.7V
INVALID
TO MAX221E
POWER SUPPLY
RIN
* TRANSMITTER IS ENABLED IF:
RECEIVER INPUT IS GREATER THAN +2.7V OR LESS THAN -2.7V.
RECEIVER INPUT HAS BEEN BETWEEN +0.3V AND -0.3V FOR
LESS THAN
30
μ
s.
30μs
COUNTER
R
FORCEOFF
POWER DOWN
INVALID
FORCEON
INVALID IS AN INTERNALLY GENERATED SIGNAL USED BY
AUTOSHUTDOWN LOGIC AND APPEARS AS AN OUTPUT.
POWER DOWN IS ONLY AN INTERNAL SIGNAL. IT CONTROLS THE
OPERATIONAL STATUS OF THE TRANSMITTER AND POWER SUPPLIES.
Figure 2b. Transmitter Enabled Using AutoShutdown
Figure 2a. Entering 1μA Supply Mode via AutoShutdown
x = Don’t care
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| MAX221 | Quadruple Bus Buffer Gates With 3-State Outputs 14-TSSOP -40 to 85 |
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| MAX221CUE | Quadruple Bus Buffer Gates With 3-State Outputs 14-TSSOP -40 to 85 |
| MAX221EAE | Quadruple Bus Buffer Gates With 3-State Outputs 14-VQFN -40 to 85 |
| MAX221EUE | 16-Bit Buffers/Drivers With 3-State Outputs 48-TVSOP -40 to 85 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX221EEAE+ | 功能描述:RS-232接口集成电路 15kV ESD-Protected 5V 1uA RS-232 Trx RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX221EEAE+T | 功能描述:RS-232接口集成电路 15kV ESD-Protected 5V 1uA RS-232 Trx RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX221EEAE-T | 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX221EEUE | 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX221EEUE+ | 功能描述:RS-232接口集成电路 15kV ESD-Protected 5V 1uA RS-232 Trx RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
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